Finding the Fourth Proportional to 2,167,872.24, 2,991,445.49 and 1,200,821.88
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Solution
The fourth proportional to 2,167,872.24, 2,991,445.49 and 1,200,821.88 is: 1,657,013.33
Step by Step Solution
- Step 1: Write the proportion equation
2,167,872.24 : 2,991,445.49 = 1,200,821.88 : x - Step 2: Convert to fraction form
2,167,872.24/2,991,445.49 = 1,200,821.88/x - Step 3: Cross multiply
2,167,872.24x = 2,991,445.49 × 1,200,821.88 - Step 4: Simplify right side
2,167,872.24x = 3,592,193,197,219.32 - Step 5: Solve for x
x = 3,592,193,197,219.32/2,167,872.24 - Step 6: Final answer
x = 1,657,013.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.